def add(a, b):
    return a+b;

def sub(a,b):
    return a-b;

def test(a, b):
    c = add(a,b);
    d = sub(a,b);
    print(f'{a}+{b}={c}')
    print(f'{a}-{b}={d}')
    
if __name__ == "__main__":
    test(1,2)